<template>
  <div id="app">
    <div>
      <span>姓名:</span>
      <input v-model.trim="name" type="text" />
    </div>
    <div>
      <span>年龄:</span>
      <input v-model.number="age" type="number" />
    </div>
    <div>
      <span>性别:</span>
      <select v-model="sex">
        <option value="男">男</option>
        <option value="女">女</option>
      </select>
    </div>
    <div>
      <button @click="addFn">添加/修改</button>
    </div>
    <div>
      <table border="1" cellpadding="10" cellspacing="0">
        <tr>
          <th>序号</th>
          <th>姓名</th>
          <th>年龄</th>
          <th>性别</th>
          <th>操作</th>
        </tr>
        <tr v-for="(item, index) in list" :key="item.id">
          <td>{{ index + 1 }}</td>
          <td>{{ item.name }}</td>
          <td>{{ item.age }}</td>
          <td>{{ item.sex }}</td>
          <td>
            <button @click="delFn(item.id)">删除</button>
            <button @click="edit(item.id)">编辑</button>
          </td>
        </tr>
      </table>
    </div>
  </div>
</template>
<script>
export default {
  methods: {
    delFn(id) {
      console.log(id);
      this.list = this.list.filter((item) => item.id !== id);
    },
    addFn() {
      if (this.name === "" || this.age === "" || this.sex === "") return;
      if (this.flag === "") {
        this.list.push({
          id: +new Date(),
          name: this.name,
          age: this.age,
          sex: this.sex,
        });
      } else {
        this.flag.name = this.name;
        this.flag.age = this.age;
        this.flag.sex = this.sex;
        this.flag = "";
      }

      this.name = "";
      this.age = "";
      this.sex = "";
    },
    edit(id) {
      //数据回显，找到对应id的数据
      let obj = this.list.find((item) => item.id === id);
      console.log(obj);
      const { age, name, sex } = obj;
      this.name = name;
      this.age = age;
      this.sex = sex;
      this.flag = obj;
    },
  },
  data() {
    return {
      name: "",
      age: "",
      sex: "",
      flag: "",
      list: [
        {
          id: 10,
          name: "xm",
          age: 10,
          sex: "男",
        },
        {
          id: 11,
          name: "xh",
          age: 11,
          sex: "女",
        },
        {
          id: 12,
          name: "xhua",
          age: 12,
          sex: "男",
        },
      ],
    };
  },
};
</script>
